S
M
T
W
T
F
S
26
91°
77°
27
90°
77°
28
91°
76°
29
90°
76°
30
91°
77°
31
90°
76°
1
86°
75°
2
87°
76°
3
87°
76°
4
88°
75°
5
87°
76°
6
88°
76°
7
89°
75°
8
87°
74°
9
86°
75°
10
86°
75°
11
87°
74°
12
85°
74°
13
86°
75°
14
92°
74°
15
91°
75°
16
88°
74°
17
90°
73°
18
92°
74°
19
91°
73°
20
91°
74°
21
90°
71°
22
90°
71°
23
88°
73°
24
90°
72°
25
90°
71°
26
91°
71°
27
91°
75°
28
90°
75°
29
92°
72°
30
91°
72°
31
91°
73°
1
90°
72°
2
90°
73°
3
89°
72°
4
90°
72°
5
89°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 85° to 92°, with overnight lows between 71° and 77°. The average high for August is 89° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
